CN209801682U - Explosion-proof super high temperature air conditioner - Google Patents
Explosion-proof super high temperature air conditioner Download PDFInfo
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- CN209801682U CN209801682U CN201821941536.3U CN201821941536U CN209801682U CN 209801682 U CN209801682 U CN 209801682U CN 201821941536 U CN201821941536 U CN 201821941536U CN 209801682 U CN209801682 U CN 209801682U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The utility model discloses an explosion-proof special high temperature air conditioner, including explosion-proof casting type compressor, this ampere of type exhaust temperature sensor, this ampere of type high-voltage switch, this ampere of type condensing pressure controller, high pressure gauge, outdoor side heat exchanger, liquid storage pot, drier-filter, explosion-proof refrigeration solenoid valve, thermal expansion valve, indoor side heat exchanger, vapour and liquid separator, low pressure gauge, this ampere of type low-voltage switch, explosion-proof hydrojet solenoid valve and explosion-proof electrical apparatus control box. The utility model discloses an increase hydrojet solenoid valve control hydrojet action, in changeing the outdoor environment with the heat through the refrigerant circulation, compressor high-pressure and exhaust temperature can last the increase and rise, reach certain pressure after, with the refrigerant reposition of redundant personnel partly direct compressor induction port of converging, make the exhaust temperature and the high-pressure greatly reduced of compressor, both improved the life of compressor, the service temperature range of air conditioner has been increased again, thereby effectively realize effectively cooling to the inside of space under special temperature.
Description
Technical Field
The utility model relates to a high temperature air conditioning technology field especially relates to an explosion-proof special high temperature air conditioner.
Background
At present, with the development demand of science and technology, in the industries of chemical industry, medical treatment, scientific research, drilling and mining, manufacturing and the like, part of areas are often in high temperature (the extreme temperature may reach 75 ℃) and have dangerous environments of combustible gas, the areas are more and more, serious threats are caused to workers, electrical equipment and the like in the environments, and safe cooling measures are necessary for some extremely high-temperature dangerous environments of the workers, such as a control room, a laboratory, an operation room, an analysis room and the like, so that a good working environment is provided for the workers; electrical equipment with large heat productivity in some dangerous environments also needs to be cooled, otherwise, the equipment can be damaged; in view of the above special requirements, common explosion-proof air conditioners cannot meet the above requirements, and therefore, temperature reduction equipment such as explosion-proof ultrahigh temperature air conditioners that meet the environmental requirements must be used to reduce the temperature of the environment.
In addition, the conventional high-temperature unit on the market uses the R134a refrigerant, but when the R134a refrigerant is operated in an environment higher than 53 ℃, the system exhaust temperature and the system exhaust pressure are high, and the air-conditioning refrigerating capacity and efficiency become quite low.
And the explosion-proof high temperature air conditioner on the market at present only supports local control, but not remote monitoring and control, thereby being incapable of meeting remote centralized control. Therefore, the performance of the explosion-proof air conditioner corresponding to the existing explosion-proof high-temperature air conditioner is not perfect enough, and the requirements of the dangerous environment can not be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an explosion-proof special high temperature air conditioner can provide an explosion-proof, special high temperature region, installation maintenance convenience simple, can effectively ensure that equipment provides the explosion-proof air conditioner that can safe and reliable use in high temperature dangerous trades such as drilling, oil, chemical industry and place.
The utility model adopts the technical proposal that:
An explosion-proof ultra-high temperature air conditioner comprises an explosion-proof cast type compressor, an intrinsic safety type exhaust temperature sensor, an intrinsic safety type high-voltage switch, an intrinsic safety type condensation pressure controller, a high-pressure gauge, an outdoor side heat exchanger, a liquid storage tank, a drying filter, an explosion-proof refrigeration electromagnetic valve, a thermal expansion valve, an indoor side heat exchanger, a gas-liquid separator, a low-pressure gauge, an intrinsic safety type low-voltage switch, an explosion-proof liquid injection electromagnetic valve, a condensation fan, an evaporation fan and an explosion-proof electrical appliance control box;
The outlet of the explosion-proof cast-in-place compressor is communicated with the air inlet of the outdoor heat exchanger through a copper pipe, and the copper pipe is sequentially provided with an intrinsic safety type exhaust temperature sensor, an intrinsic safety type high-voltage switch, an intrinsic safety type condensation pressure controller and a high-pressure gauge; the air outlet of the outdoor heat exchanger is communicated with the inlet of the liquid storage tank through a copper pipe; the outlet of the liquid storage tank is communicated with the inlet of the indoor side heat exchanger through a copper pipe, and the copper pipe is sequentially provided with a drying filter, an explosion-proof refrigeration solenoid valve and a thermal expansion valve; an outlet of the indoor side heat exchanger is communicated with an inlet of the gas-liquid separator through a copper pipe, and an outlet of the gas-liquid separator is communicated with an inlet of the explosion-proof casting type compressor through a low-pressure gauge and an intrinsic safety type low-pressure switch; explosion-proof hydrojet solenoid valve pass through the copper pipe setting between the induction port of explosion-proof casting type compressor and the export of liquid storage pot, condensation fan, evaporation fan set up respectively on indoor side heat exchanger and outdoor side heat exchanger, explosion-proof control box be provided with controller, explosion-proof safety barrier and power module, this ampere of type exhaust temperature sensor 2, this ampere of type high-pressure switch, low pressure gauge, high pressure gauge's output connect the input of controller respectively, this ampere of type condensation pressure controller, explosion-proof refrigeration solenoid valve, thermal expansion valve, this ampere of type low pressure switch, explosion-proof hydrojet solenoid valve, condensation fan, evaporation fan's control input is connected respectively to the output of controller.
the explosion-proof evaporation fan 17 consists of an explosion-proof motor, a motor bracket and an impeller, is connected into an explosion-proof control box of an explosion-proof ultra-high temperature air conditioner through a wire, and can be safely and reliably operated in a dangerous environment through spark prevention treatment.
The explosion-proof condensing fan 16 consists of an explosion-proof motor, a motor bracket and an impeller, is connected into an explosion-proof control box of an explosion-proof ultrahigh-temperature air conditioner through a wire, and can be safely and reliably operated in a dangerous environment through spark prevention treatment.
the explosion-proof refrigeration electromagnetic valve and the explosion-proof liquid spraying electromagnetic valve are explosion-proof authentication electromagnetic valves, can ensure safe and reliable operation in a dangerous environment, and are connected into an explosion-proof control box of an explosion-proof ultrahigh-temperature air conditioner through a lead.
intrinsic safety type exhaust temperature sensor, intrinsic safety type high voltage switch, intrinsic safety type condensation pressure controller, explosion-proof refrigeration solenoid valve, intrinsic safety type low voltage switch, explosion-proof hydrojet solenoid valve according to GB3836.4 family explosion-proof standard, with isolated safety barrier adapted, make the essence safety type to guarantee above part can the safe and reliable operation under the explosive dangerous environment. The control and protection components of the intrinsic safety type explosion-proof refrigerating system are connected into an explosion-proof control box of an explosion-proof ultrahigh-temperature air conditioner through a lead.
The explosion-proof ultra-high temperature air conditioning unit is also internally provided with an overvoltage protection module, an undervoltage protection module, an overload protection module, a high-voltage protection module, a low-voltage protection module and an over-temperature difference protection module, and is used for realizing the functions of controlling the start and stop of the compressor and the fan, protecting the overvoltage, the undervoltage, the overload, the high-voltage, the low-voltage and the over-temperature difference by an electrical part.
The remote control module adopts a Modbus-RTU multi-path relay module to be used for remotely switching on and off, setting air conditioner parameters and checking the running state of the air conditioner.
The utility model discloses a to above special environment demand, when carrying out explosion-proof design to each part of air conditioner body, increase hydrojet solenoid valve control hydrojet action, thereby in air cycle changes over to the refrigerant with indoor heat, through the refrigerant cycle with the heat in the outdoor environment of going to, and outdoor ambient temperature is very high (53-75 ℃) this moment, compressor high-pressure and exhaust temperature can last the increase and rise, after reaching certain pressure, the hydrojet solenoid valve begins work, it directly converges the compressor induction port to shunt a part with the refrigerant, can make the exhaust temperature and the high-pressure greatly reduced of compressor like this, the life of compressor has both been improved, the service temperature scope of air conditioner has been increased again, thereby effectively realize effectively lowering the temperature to the inside of space under special temperature.
Drawings
Fig. 1 is an electrical schematic connection diagram of the present invention.
Detailed Description
As shown in fig. 1, the utility model discloses an explosion-proof casting type compressor 1, this ampere type exhaust temperature sensor 2, this ampere type high-voltage switch 3, this ampere type condensing pressure controller 4, high-pressure gauge 5, outdoor side heat exchanger (condenser) 6, liquid storage pot 7, drier-filter 8, explosion-proof refrigeration solenoid valve 9, thermal expansion valve 10, indoor side heat exchanger (evaporator) 11, vapour and liquid separator 12, low-pressure gauge 13, this ampere type low-voltage switch 14, explosion-proof hydrojet solenoid valve 15, condensation fan 16 and evaporation fan 17;
An outlet of the explosion-proof cast-in-place compressor 1 is communicated with an air inlet of an outdoor heat exchanger (condenser) 6 through a copper pipe, and an intrinsic safety type exhaust temperature sensor 2, an intrinsic safety type high-voltage switch 3, an intrinsic safety type condensation pressure controller 4 and a high-pressure gauge 5 are sequentially arranged on the copper pipe; the air outlet of the outdoor heat exchanger (condenser) 6 is communicated with the inlet of the liquid storage tank 7 through a copper pipe; an outlet of the liquid storage tank 7 is communicated with an inlet of an indoor side heat exchanger (evaporator) 11 through a copper pipe, and a drying filter 8, an explosion-proof refrigeration electromagnetic valve 9 and a thermal expansion valve are sequentially arranged on the copper pipe; an outlet of the 10 indoor side heat exchanger (evaporator) 11 is communicated with an inlet of a gas-liquid separator 12 through a copper pipe, and an outlet of the gas-liquid separator 12 is communicated with an inlet of the explosion-proof casting type compressor 1 through a low-pressure gauge 13 and an intrinsic safety type low-pressure switch 14; the explosion-proof liquid spraying electromagnetic valve 15 is arranged between the air suction port of the explosion-proof casting type compressor 1 and the outlet of the liquid storage tank 7 through a copper pipe. The explosion-proof control box be provided with controller, explosion-proof safety barrier and power module, this ampere of type exhaust temperature sensor 2, this ampere of type high-voltage switch 3, low pressure gauge 13's output connect the input of controller respectively, this ampere of type condensation pressure controller 4 is connected respectively to the output of controller, high pressure gauge 5, outdoor side heat exchanger (condenser) 6, drying filter 8, explosion-proof refrigeration solenoid valve 9, thermal expansion valve 10, indoor side heat exchanger (evaporimeter) 11, vapour and liquid separator 12, this ampere of type low-voltage switch 14, explosion-proof hydrojet solenoid valve 15, condensing fan 16, evaporating fan 17's control input.
The explosion-proof casting type compressor comprises an explosion-proof casting type compressor 1, a high-pressure gauge 5, an outdoor side heat exchanger (condenser) 6, a liquid storage tank 7, a drying filter 8, an explosion-proof refrigeration electromagnetic valve 9, a thermal expansion valve 10, an indoor side heat exchanger (evaporator) 11, a gas-liquid separator 12 and a low-pressure gauge 13, which are sequentially connected with a copper pipe and are connected into the explosion-proof casting type compressor 1. Forming a closed refrigeration system. Explosion-proof casting type compressor 1 adopt scroll compressor, simple structure, small, light in weight, good reliability, vibration are little, the noise is low moreover, efficient, the moment change is little.
The explosion-proof evaporation fan 17 consists of an explosion-proof motor, a motor bracket and an impeller, is connected into an explosion-proof control box of an explosion-proof ultra-high temperature air conditioner through a wire, and can be safely and reliably operated in a dangerous environment through spark prevention treatment.
The explosion-proof condensing fan 16 consists of an explosion-proof motor, a motor bracket and an impeller, is connected into an explosion-proof control box of an explosion-proof ultrahigh-temperature air conditioner through a wire, and is subjected to spark-proof treatment to ensure safe and reliable operation in a dangerous environment;
The explosion-proof refrigeration electromagnetic valve and the explosion-proof liquid spraying electromagnetic valve are explosion-proof authentication electromagnetic valves, can ensure safe and reliable operation in a dangerous environment, and are connected into an explosion-proof control box of an explosion-proof ultrahigh-temperature air conditioner through a lead; the air conditioner is made into an explosion-proof type: according to GB3836 series national explosion-proof standard, the air conditioner is made into an explosion-proof type, and is applied to an explosion danger place with or without existence of IIA-IIC and existence of T1-T4 groups of combustible gases, steam and air, and air conditioning is carried out on a space, wherein the main explosion-proof component comprises: explosion-proof electrical control box, explosion-proof centrifugal fan, explosion-proof axial flow fan, explosion-proof refrigerating system and isolation
Formula safety barrier, explosion-proof air conditioner controller.
The safety type exhaust temperature sensor, the safety type high-voltage switch 3, the safety type condensation pressure controller 4, the explosion-proof refrigeration electromagnetic valve 9, the safety type low-voltage switch 14 and the explosion-proof liquid injection electromagnetic valve 15 are matched with an isolated safety barrier according to GB3836.4 household explosion-proof standards to be made into an intrinsically safe type, so that the components can be safely and reliably operated under an explosive dangerous environment. The control and protection components of the intrinsic safety type explosion-proof refrigerating system are connected into an explosion-proof control box of an explosion-proof ultrahigh-temperature air conditioner through a lead. In the utility model, because the environment temperature is mostly very high, the condensing temperature is too high during the operation of the air conditioning system, so the condensing pressure is also very high, further resulting in the exhaust temperature of the compressor being too high, which easily causes the overheating of the compressor,
And a series of serious problems of accelerated insulation aging of the compressor coil, reduced viscosity of lubricating oil, increased carbonization speed of the lubricating oil and the like are brought. Therefore, in order to prevent the exhaust temperature of the compressor from being too high, a liquid spraying device is adopted to directly introduce low-temperature spraying from an evaporator to the outlet of the compressor through a capillary tube so as to reduce the exhaust temperature and the average condensation temperature. This method, although it causes the loss of cooling capacity, effectively reduces the exhaust temperature and improves the performance of the air conditioner.
An overvoltage protection module, an undervoltage protection module, an overload protection module, a high-voltage protection module, a low-voltage protection module and an over-temperature difference protection module are further arranged in the explosion-proof ultra-high temperature air conditioning unit and are used for realizing the functions of controlling the starting and stopping of a compressor and a fan, overvoltage protection, undervoltage protection, overload protection, high-voltage protection, low-voltage protection and over-temperature difference protection by an electrical part;
The remote control module adopts a Modbus-RTU multi-path relay module to be used for remotely switching on and off the air conditioner, setting air conditioner parameters and checking the running state of the air conditioner. The explosion-proof air conditioner is integrated with remote monitoring and control functions: through the RS485 communication protocol, the air conditioner can be turned on and off remotely, the air conditioner parameters can be set, the running state of the air conditioner can be checked, and the fault information of the air conditioner can be checked.
The working principle of the invention is as follows: after starting the explosion-proof ultrahigh-temperature air conditioner, starting the explosion-proof evaporation fan 17, the explosion-proof condensation fan 16 and the explosion-proof cast-in-place compressor 1, sucking indoor air by the explosion-proof evaporation fan 17, cooling by an indoor side heat exchanger (evaporator) 11, and blowing the cooled air into the room by an air supply outlet of the explosion-proof evaporation fan 17 for continuous air circulation; meanwhile, the liquid refrigerant in the indoor heat exchanger (evaporator) 11 absorbs the heat in the air to cool the air and simultaneously evaporate the refrigerant, the liquid refrigerant is completely evaporated to be low-temperature low-pressure superheated steam, then the liquid refrigerant is sucked and compressed (pressure and temperature are increased) by the cast type compressor 1 to be high-temperature high-pressure superheated gaseous refrigerant, the gaseous refrigerant releases the heat in the circulated outdoor air through the outdoor heat exchanger (condenser) 6, the refrigerant is cooled to be high-pressure medium-temperature supercooled liquid refrigerant, and the refrigerant is throttled by the thermostatic expansion valve 10 to be low-temperature low-pressure liquid refrigerant and enters the indoor heat exchanger (evaporator) 11, so that the normal cycle process of the refrigerant is completed. Indoor heat is transferred into the refrigerant through air circulation, the heat is transferred into the outdoor environment through the refrigerant circulation, the temperature of the outdoor environment is very high (53-75 ℃), the high pressure and the exhaust temperature of the compressor can be continuously increased and raised, after a certain pressure is reached, the liquid spraying electromagnetic valve 15 starts to work, a part of the divided refrigerant is directly converged into an air suction port of the compressor, so that the exhaust temperature and the high pressure of the compressor can be greatly reduced, the service life of the compressor is prolonged, the service temperature range of the air conditioner is enlarged, and effective cooling of the interior of the space at a special temperature is effectively achieved.
The invention has the following beneficial effects:
1) The electrical components in the air conditioning unit are designed and processed strictly according to the national explosion-proof standard of GB3836 series, so that the explosion-proof safety performance of the air conditioning unit in explosive dangerous places is effectively guaranteed.
2) The ultra-high temperature performance is as follows: the ambient temperature is generally about 53-75 ℃, and the local ambient temperature is reduced under the environment, so that the thermal comfort or the manufacturability requirement is realized.
3) And (4) control functions: the explosion-proof air conditioner is integrated with remote monitoring and control functions: through the RS485 communication protocol, the air conditioner can be remotely turned on and off, the air conditioner parameters can be set, the running state of the air conditioner can be checked, the fault information of the air conditioner can be checked, and the requirement of centralized control of a user can be met.
The air conditioning unit makes up for the defects of low explosion-proof performance, poor refrigeration effect in high-temperature environment, poor equipment performance and the like of other conventional and common high-temperature refrigeration equipment.
Claims (7)
1. An explosion-proof super high temperature air conditioner which is characterized in that: the system comprises an explosion-proof cast-in-place compressor, an intrinsic safety type exhaust temperature sensor, an intrinsic safety type high-voltage switch, an intrinsic safety type condensation pressure controller, a high-pressure gauge, an outdoor heat exchanger, a liquid storage tank, a drying filter, an explosion-proof refrigeration electromagnetic valve, a thermal expansion valve, an indoor heat exchanger, a gas-liquid separator, a low-pressure gauge, an intrinsic safety type low-voltage switch, an explosion-proof liquid injection electromagnetic valve, a condensation fan, an evaporation fan and an explosion-proof electric appliance control box;
The outlet of the explosion-proof cast-in-place compressor is communicated with the air inlet of the outdoor heat exchanger through a copper pipe, and the copper pipe is sequentially provided with an intrinsic safety type exhaust temperature sensor, an intrinsic safety type high-voltage switch, an intrinsic safety type condensation pressure controller and a high-pressure gauge; the air outlet of the outdoor heat exchanger is communicated with the inlet of the liquid storage tank through a copper pipe; the outlet of the liquid storage tank is communicated with the inlet of the indoor side heat exchanger through a copper pipe, and the copper pipe is sequentially provided with a drying filter, an explosion-proof refrigeration solenoid valve and a thermal expansion valve; an outlet of the indoor side heat exchanger is communicated with an inlet of the gas-liquid separator through a copper pipe, and an outlet of the gas-liquid separator is communicated with an inlet of the explosion-proof casting type compressor through a low-pressure gauge and an intrinsic safety type low-pressure switch; the explosion-proof hydrojet solenoid valve pass through the copper pipe setting between the induction port of explosion-proof casting type compressor and the export of liquid storage pot, condensation fan, evaporation fan set up respectively on indoor side heat exchanger and outdoor side heat exchanger, explosion-proof electrical apparatus control box be provided with controller, explosion-proof safety barrier and power module, this ampere of type exhaust temperature sensor, this ampere of type high-voltage switch, low pressure gauge, high pressure gauge's output connect the input of controller respectively, this ampere of type condensation pressure controller, explosion-proof refrigeration solenoid valve, thermal expansion valve, this ampere of type low-voltage switch, explosion-proof hydrojet solenoid valve, condensation fan, evaporation fan's control input is connected respectively to the output of controller.
2. an explosion-proof ultra high temperature air conditioner according to claim 1, characterized in that: the evaporation fan (17) consists of an explosion-proof motor, a motor bracket and an impeller, is connected into an explosion-proof electrical appliance control box of the explosion-proof ultrahigh-temperature air conditioner through a wire, and can be safely and reliably operated in a dangerous environment through spark prevention treatment.
3. an explosion-proof ultra high temperature air conditioner according to claim 2, characterized in that: the explosion-proof condensing fan (16) consists of an explosion-proof motor, a motor bracket and an impeller, is connected into an explosion-proof electrical appliance control box of an explosion-proof ultrahigh-temperature air conditioner through a wire, and can be safely and reliably operated in a dangerous environment through spark prevention treatment.
4. An explosion-proof ultra high temperature air conditioner according to claim 3, characterized in that: the explosion-proof refrigeration electromagnetic valve and the explosion-proof liquid spraying electromagnetic valve are explosion-proof authentication electromagnetic valves, can ensure safe and reliable operation in a dangerous environment, and are connected into an explosion-proof electrical appliance control box of an explosion-proof ultrahigh-temperature air conditioner through a lead.
5. An explosion-proof ultra high temperature air conditioner according to claim 4, characterized in that: the intrinsic safety type exhaust temperature sensor, the intrinsic safety type high-voltage switch, the intrinsic safety type condensation pressure controller, the explosion-proof refrigeration electromagnetic valve, the intrinsic safety type low-voltage switch and the explosion-proof liquid injection electromagnetic valve are matched with the isolated safety barrier according to the GB3836.4 household explosion-proof standard, and are intrinsically safe.
6. an explosion-proof ultra-high temperature air conditioner according to claim 5, characterized in that: the explosion-proof ultra-high temperature air conditioning unit is also internally provided with an overvoltage protection module, an undervoltage protection module, an overload protection module, a high-voltage protection module, a low-voltage protection module and an over-temperature difference protection module, and is used for realizing the functions of controlling the start and stop of the compressor and the fan, protecting the overvoltage, the undervoltage, the overload, the high-voltage, the low-voltage and the over-temperature difference by an electrical part.
7. An explosion-proof ultra high temperature air conditioner according to claim 6, characterized in that: the remote control module adopts a Modbus-RTU multi-path relay module to be used for remotely switching on and off, setting air conditioner parameters and checking the running state of the air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821941536.3U CN209801682U (en) | 2018-11-23 | 2018-11-23 | Explosion-proof super high temperature air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821941536.3U CN209801682U (en) | 2018-11-23 | 2018-11-23 | Explosion-proof super high temperature air conditioner |
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| CN209801682U true CN209801682U (en) | 2019-12-17 |
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| CN201821941536.3U Active CN209801682U (en) | 2018-11-23 | 2018-11-23 | Explosion-proof super high temperature air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114608071A (en) * | 2022-03-14 | 2022-06-10 | 珠海凌达压缩机有限公司 | Control device and method of air conditioning system and air conditioning system |
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2018
- 2018-11-23 CN CN201821941536.3U patent/CN209801682U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114608071A (en) * | 2022-03-14 | 2022-06-10 | 珠海凌达压缩机有限公司 | Control device and method of air conditioning system and air conditioning system |
| CN114608071B (en) * | 2022-03-14 | 2023-11-14 | 珠海凌达压缩机有限公司 | Control device and method of air conditioning system and air conditioning system |
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